Type-writer attachment.



No. 727,595. PATBNVTED um, 190a.

V e. A. DANIELSON.

TYPE WRITER ATTACHMENT.

APPLICATION FILED JUNE 11. 1902.

1'0 MODEL.

UNTTnn STATES- Patented May 12, 1903.

PATENT OFFICE.

TYPE-WRITER ATTACH M E NT.

SPECIFICATION formingpart of Letters Patent No. 727,595, dated May 12, 1903.

Application filed June 11, 1902. Serial No. 111,103. (No model.)

To all whom it may concern:

Be it known that I, GUSTAF A. DANIELSON, of Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in Type-\Vriter Attachments, of whichthe following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts. 7 k

This invention relates to type-writer attachments, and has forits object to construct an attachment adapted to be applied to a type-writing machine for holding the type separately in an easily accessible position while being cleaned.

The invention consists in a plate having suitable end supports and a type-receiving perforation so located as to receive any one of the types and a locking device for locking the type in said perforation, thereby holding it while it is being cleaned.

Figure 1 shows a cross-sectional view of the device embodying this invention in connection with one of the type and its actuating mechanism. Fig. 2is a plan view of the device, the locking device being in its normal position, a position which it also occupies when in engagement with the type-carrying bar. Fig. 8 is a similar View showing the locking device moved into position to allow the type to be projected through the perforation or to release a previously-engaged type. Fig. 4 is a side elevation of the device shown in Fig. 1.

a represents the plate,which is made 'of any suitable width and also of any suitable length to extend across the top of the support for the type o'f any ordinary Remington or similartype-writing machine. The plate ais provided at each end with an end support, which is adjustable, whereby the length of the plate may be varied. The end supports each comprise, essentially, a plate at, having a plurality of downward inward projecting fingers 0. One of the end plates ct has screws 2 projecting downward through slots 3 in the plate a, and nuts t are turned onto the projecting ends of said screws to thereby firmly hold the end plate in adjusted position on the plate a. The other end plate a has a hole through it for a screw 5, which works in a slot 6 in the plate a, the lower end of said key connected therewith is depressed, and

when the type tllus'projects up through said perforation, as shown in Fig. 1, it is easily accessible for the purpose'of'cleanin g it.

For the purpose of firmly holding the type in the perforation while it is being cleaned a suitable locking device is provided, and

.while it is obvious that many forms of locking devices may be employed which come within the spirit and scope of this invention I do not desire to limit my invention to any particular-form or construction of locking device which may be employed. The locking device herein shown consists, essentially, of a fiat plate b,which rests upon the plate a, having guiding portions 1) at each end which slide in guideways formed by transversely-disposed straps b secured to said plate a. At the extremity of one of the guiding portions b" a finger-piece b is formed or provided, by which the plate 6 may be moved, and at the extremity of the other guiding portion b one end of a spring I) is attached, the other end of which is attached to a fixed projection b secured to the plate a.

The plate I) has a perforation of a different shape from the perforation in plate a, it being herein shown as comprising a type-receiving portion c of a shape corresponding to the shape of the type-receivingperforation a in the plate a and also a type-bar-receiving portion 0', leading from it.

The locking device is movable longitudinally by pressure upon the finger-piece b in opposition to the action of the spring 11* for the purpose of enabling a type to be brought into position to be engaged or to release an engaged type and is moved in the opposite direction by the spring when the pressure upon the finger-piece is released to engage and hold the type, and consequently the openc of the perforation registers with the perforation a in the plate a, as shown in Fig. 3, and then the type is raised by depressing its key and projected through the perforations in both plates, and while the type is thus raised the pressure of the finger will be released and the plate I) moved in the opposite direction by the spring into the position shown in Fig. 2, and the portion 0 of the perforation will at such time be moved beneath the type and will receive the type-carrying bar. The type will thus be locked in its elevated position, asshown in Fig. 1, and while it is so held is easily accessible. Thereafter the plate I) will be again moved by pressure upon the fingerpiece and the type released and permitted to resume its normal position.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, isv 1. In an attachment for type-writers, a supporting-plate having an opening, means for attaching said plate to the top plate of the typewriter, and aplate adapted to slide on said supporting-plate and cooperate therewith to vary thesize of the opening therein,

for the purpose of allowing the type to be projected therein and locked, substantially as described.

2. In an attachment for type-writers, a supporting-plate having an opening, means for attaching said plate to the top plate of the type-writer, and a plate adapted to slide on said supporting-plate and having an opening, said slidable plate adapted to cooperate with said supporting-plate to vary the size of the opening therein, for the purpose of allowing the type to be projected therein and locked, substantially as described.

3. In an attachment for type-writers, a longitudinally-adj ustable su pporting-plate having an opening, means for attaching said plate to the top plate of the typewriter, and a plate adapted to slide on said top plate and cooperate therewith to vary the size of the opening therein, for the purpose of allowing the type to be projected therein and locked, substan tially as described.

4. In an attachment for type-writers, asupporting-plate spanning the opening in the top plate of the type-writer and having an opening, means for attaching said plate to the top plate of the typewriter, and a plate adapted to slide on said supporting-plate and cooperate therewith to vary the size of the opening therein, for the purpose of allowing the type to be projected therein and locked, substantially as described.

5. In a typewriter attachment, a plate having end supports and a type-receiving perforation, and a longitudinally-movable plate thereon having a type and type-bar receiving perforation, and also having a finger-piece at one end and a spring attached to its opposite end, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GUSTAF A. DANIELSON.

Witnesses:

B. J. NOYES, H. B. DAVIS. 

